These materials include siloxanes and silicones with diamine, polyamine structures, and dianhydride structures.
Difunctional Siloxane Curing Agents
| Product Code | Structure | Name | Molecular Weight | BP/mm (MP) (°C) | Density D420 | Refractive Index nD20 | Comments | CAS |
|---|---|---|---|---|---|---|---|---|
| SIB1021.5 |  | 1,3-bis(2-aminoethylaminomethyl)tetramethyldisiloxane | 278.55 | 140-150/2 | 0.941 | -- | curing agent for epoxies | [83936-41-8] |
| SIB1024.0 |  | bis(3-aminopropyl)tetramethyldisiloxane | 248.52 | 132-139/11 | 0.89725 | 1.448025 | flashpoint: 91 °C pKb: 5.5 flexibilizing hardener for epoxies, endcapper for aminopropyl-terminated silicones | [2469-55-8] TSCA |
| SIB1022.0 |  | bis(p-aminophenoxy)dimethylsilane | 274.39 | 195-199/0.5 (64) | -- | -- | flashpoint: >110 °C intermediate for polyimides | [1223-16-1] |
Aminopropyl-Terminated Polydimethylsiloxanes, CAS: [106214-84-0], TSCA
| Product Code | Viscosity (cSt) | Molecular Weight | Wt% Amine | Refractive Index | Density |
|---|---|---|---|---|---|
| DMS-A11 | 10-15 | 850-900 | 3.2-3.8 | 1.412 | 0.98 |
| DMS-A12 | 20-30 | 900-1,000 | 3.0-3.2 | 1.411 | 0.98 |
| DMS-A15 | 50-60 | 3,000 | 1.0-1.2 | 1.408 | 0.97 |
| DMS-A21 | 100-120 | 5,000 | 0.6-0.7 | 1.407 | 0.98 |
| DMS-A31 | 900-1,100 | 25,000 | 0.11-0.12 | 1.407 | 0.98 |
| DMS-A32 | 1,800-2,200 | 30,000 | 0.08-0.09 | 1.404 | 0.98 |
| DMS-A35 | 4,000-6,000 | 50,000 | 0.05-0.06 | 1.404 | 0.98 |
Reduced Volatility Grades Aminopropyl-Terminated Polydimethylsiloxanes
| Product Code | Viscosity (cSt) | Molecular Weight | Wt% Amine | Refractive Index | Density |
|---|---|---|---|---|---|
| DMS-A32R | 1,900-2,300 | 30,000 | 0.08-0.09 | 1.404 | 0.98 |
Aminopropylmethylsiloxane-Dimethylsiloxane Copolymers, CAS: [99363-37-8], TSCA
| Product Code | Viscosity (cSt) | Molecular Weight | Mole % Aminopropyl Methylsiloxane | Refractive Index | Density |
|---|---|---|---|---|---|
| AMS-132 | 80-120 | 4,500-6,000 | 2-3 | 1.404 | 0.96 |
| AMS-152 | 100-300 | 7,000-9,000 | 4-5 | 1.408 | 0.97 |
| AMS-162 | 64-200 | 4,000-5,000 | 6-7 | 1.410 | 0.97 |
| AMS-163 | 1,800-2,200 | 50,000 | 6-7 | 1.411 | 0.97 |
| AMS-191 | 40-60 | 2,000-3,000 | 9-11 | 1.412 | 0.97 |
| AMS-1203 | 900-1,100 | 20,000 | 20-25 | 1.426 | 0.98 |
Aminoethylaminoisobutylmethylsiloxane-Dimethylsiloxane Copolymers, CAS: [106842-44-8], TSCA
| Product Code | Viscosity (cSt) | Molecular Weight | Mole % Diaminopropyl Methylsiloxane | Refractive Index | Density |
|---|---|---|---|---|---|
| AMS-42 | 120-150 | -- | 3-5 | 1.404 | 0.97 |
Anhydride-functional silicones offer outstanding color stability as curing agents for epoxy resins.
Succinic Anhydride-Terminated Polydimethylsiloxane, CAS: [161208-23-8]
| Product Code | Viscosity (cSt) | Molecular Weight | Refractive Index | Density |
|---|---|---|---|---|
| DMS-Z21 | 75-100 | 600-800 | 1.36 | 1.06 |